18 Motor Grader

Motor Graders 18

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Key Specs

Base Power (1st Gear) - Net
304 HP
227 kW
Operating Weight - Typically Equipped
74324 lb
33713 kg
Blade Width
18 ft
5.5 m

Overview

Keep Haul Roads Productive and Efficient

More power, more efficiency, improved emissions control and a wider moldboard help the Cat® 18 rise up to the challenge of mining operations. Technologies assist the operator and work to minimize operating costs. And, Cat durability helps ensure peak availability.

Benefits

Move more with less fuel

Eco Mode saves fuel while maintaining productivity.

Maintain cross slope

Cat Grade Control helps operator maintain desired cross slope.

Manage your fleet

Cat MineStar helps manage your fleet to optimize quality and operating costs.

Product Specifications for 18

Base Power (1st Gear) - Net 304 HP 227 kW
Engine Model Cat® C13 Cat® C13
Bore 5.1 in 130 mm
Stroke 6.2 in 157 mm
Speed at Rated Power 2,000 rpm 2,000 rpm
Standard - Ambient Capability 122 °F 50 °C
Base Power (1st Gear) - Net - Metric 309 HP 227 kW
VHP Range - Net 227-266 kW (304-357 hp) 227-266 kW (304-357 hp)
Maximum Torque - ISO 9249 - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent 1270 lb/ft 1721 N·m
Derating Altitude - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent 12176 ft 3711 m
Derating Altitude - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent 12973 ft 3954 m
Maximum Torque - ISO 9249 - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent 1270 lb/ft 1721 N·m
Standard - Fan Speed - Minimum 550 rpm 550 rpm
Emissions (1) U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final) U.S. EPA Tier 4 Final/EU Stage V/Japan 2014 (Tier 4 Final)
Torque Rise - Tier 4/Stage IV/Japan 2014 (Tier 4 Final) 40% 40%
Maximum Torque - ISO 9249 - Tier 4/Stage IV/Japan 2014 (Tier 4 Final) 1306 lb/ft 1771 N·m
Derating Altitude - Tier 4/Stage IV/Japan 2014 (Tier 4 Final) 12500 ft 3810 m
Torque Rise - Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent 38% 38%
Standard - Fan Speed - Maximum 1,450 rpm 1,450 rpm
Emissions (2) Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent Emission Standards
Torque Rise - Tier 3/Stage IIIA/Japan 2006 (Tier 3) Equivalent 38% 38%
VHP Range - Net - Metric 227-266 kW (309-362 hp) 227-266 kW (309-362 hp)
Emissions (3) Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards Tier 2/Stage II/Japan 2001 (Tier 2) Equivalent Emission Standards
Optimized VHP Range - Net 227-266 kW (304-357 hp) 227-266 kW (304-357 hp)
Displacement 763 in³ 12.5 l
Number of Cylinders 6 6
Operating Weight - Typically Equipped 74324 lb 33713 kg
Forward/Reverse Gears 8 Forward/6 Reverse 8 Forward/6 Reverse
Transmission Direct drive, power shift, countershaft Direct drive, power shift, countershaft
Brakes - Parking Spring applied, hydraulically released Spring applied, hydraulically released
Brakes - Dynamic Brake Torque per Wheel 27069.27 lb/ft 36701 N·m
Brakes - Service Oil-actuated, oil disc Oil-actuated, oil disc
Brakes - Secondary Oil-actuated, oil-disc Oil-actuated, oil-disc
Blade Width 18 ft 5.5 m
Arc Radius 16.3 in 413 mm
Throat Clearance 5 in 126 mm
Down Force - Maximum GVW 43861 lb 19895 kg
Blade Pull* - Base GVW 47216 lb 21417 kg
Blade Pull* - Maximum GVW 52878 lb 23985 kg
End Bit - Width 6 in 152 mm
Down Force - Base GVW 34008 lb 15426 kg
Cutting Edge Thickness 1.4 in 35 mm
Thickness 1 in 25 mm
Width 18 ft 5.5 m
Cutting Edge Width 10 in 254 mm
End Bit - Thickness 0.75 in 19 mm
Height 31 in 787 mm
Note *Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight. *Blade pull calculated at 0.9 traction coefficient, which is equal to ideal no-slip conditions, and Gross Machine Weight.
Circuit Type Electro-hydraulic load sensing, closed center Electro-hydraulic load sensing, closed center
Pump Type Variable piston Variable piston
Maximum System Pressure 3590 psi 24750 kPa
Standby Pressure 856 psi 5900 kPa
Pump Output* 74 gal/min 280 l/min
Note *Pump output measured at 2,150 rpm. *Pump output measured at 2,150 rpm.
Forward - 6th 16 mile/h 25.8 km/h
Forward - 2nd 3.8 mile/h 6.1 km/h
Forward - 8th 32.1 mile/h 51.7 km/h
Forward - 5th 11.8 mile/h 19 km/h
Reverse - 3rd 6 mile/h 9.7 km/h
Turning Radius - Outside Front Tires 30.5 ft 9.3 m
Forward - 4th 7.6 mile/h 12.3 km/h
Top Speed - Reverse 25.3 mile/h 40.8 km/h
Forward - 7th 22 mile/h 35.5 km/h
Articulation Angle - Left/Right 20° 20°
Reverse - 1st 2.2 mile/h 3.6 km/h
Forward - 3rd 5.5 mile/h 8.9 km/h
Reverse - 4th 9.3 mile/h 15 km/h
Forward - 1st 2.8 mile/h 4.5 km/h
Top Speed - Forward 32.1 mile/h 51.7 km/h
Reverse - 6th 25.3 mile/h 40.8 km/h
Steering Range - Left/Right 47.5° 47.5°
Reverse - 2nd 4.1 mile/h 6.6 km/h
Reverse - 5th 17.4 mile/h 28 km/h
Note Calculated with no slip and 23.5R25 L-3 tires. Calculated with no slip and 23.5R25 L-3 tires.
Fuel Capacity 131 gal (US) 496 l
Cooling System 18.5 gal (US) 70 l
Hydraulic System - Tank 18.5 gal (US) 70 l
Hydraulic System - Total 38.6 gal (US) 146 l
DEF Tank 4.2 gal (US) 16 l
Engine Oil 9.5 gal (US) 36 l
Transmission - Differential - Final Drives 26 gal (US) 98.5 l
Tandem Housing - Each 34 gal (US) 129 l
Front Wheel Spindle Bearing Housing 0.24 gal (US) 0.9 l
Circle Drive Housing 2.6 gal (US) 10 l
Front Frame Structure - Width 14 in 356 mm
Front Axle - Height to Center 26.4 in 670 mm
Circle - Diameter 71.7 in 1822 mm
Front Frame Structure - Thickness 0.6 in 14 mm
Front Frame Structure - Height 18.1 in 460 mm
Circle - Blade Beam Thickness 2 in 50 mm
Drawbar - Width 3 in 76 mm
Front Axle - Wheel Lean 18° Left/17° Right 18° Left/17° Right
Front Axle - Total Oscillation per Side 35° 35°
Drawbar - Height 8 in 203 mm
Sidewall Thickness - Outer 0.9 in 22 mm
Sidewall Thickness - Inner 0.9 in 22 mm
Tandem Oscillation - Front Up 15° 15°
Tandem Oscillation - Front Down 25° 25°
Height 25.5 in 648 mm
Width 9.3 in 236 mm
Drive Chain Pitch 2.5 in 63.5 mm
Wheel Axle Spacing 72.5 in 1841 mm
Maximum Blade Position Angle 65° 65°
Maximum Lift Above Ground 15.7 in 400 mm
Maximum Depth of Cut 18.5 in 470 mm
Maximum Shoulder Reach Outside of Tires - Right 103 in 2605 mm
Circle Centershift - Right 22 in 560 mm
Maximum Shoulder Reach Outside of Tires - Left 103 in 2605 mm
Moldboard Sideshift - Right 31.1 in 790 mm
Blade Tip Range - Backward
Moldboard Sideshift - Left 29.1 in 740 mm
Circle Centershift - Left 27.2 in 690 mm
Blade Tip Range - Forward 40° 40°
Shank Holder Spacing - Minimum 17.5 in 445 mm
Ripping Depth - Maximum 17.8 in 452 mm
Shank Holder Spacing - Maximum 20 in 500 mm
Ripper Shank Holders 7 7
Penetration Force 30311 lb 13749 kg
Pry-Out Force 43700 lb 19822 kg
Machine Length Increase, Beam Raised 63.4 in 1610 mm
Gross Vehicle Weight - Typically Equipped - Rear Axle 53830 lb 24417 kg
Gross Vehicle Weight - Base** - Total 72298 lb 32794 kg
Gross Vehicle Weight - Maximum Tested - Rear Axle 58753 lb 26650 kg
Gross Vehicle Weight - Maximum Tested - Front Axle 26125 lb 11850 kg
Gross Vehicle Weight - Typically Equipped - Front Axle 20494 lb 9296 kg
Gross Vehicle Weight - Base** - Front Axle 19837 lb 8998 kg
Gross Vehicle Weight - Maximum Tested - Total 84877 lb 38500 kg
Gross Vehicle Weight - Typically Equipped - Total 74324 lb 33713 kg
Gross Vehicle Weight - Base** - Rear Axle 52461 lb 23796 kg
Note (2) **Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab. **Base operating weight calculated on standard machine configuration with 23.5R25 tires, full fuel tank operator and rops cab.
Note (1) *No Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final) emission engine: subtract 150 kg (331 lb) from rear axle wt. & total wt. *No Tier 4 Final/Stage IV/Japan 2014 (Tier 4 Final) emission engine: subtract 150 kg (331 lb) from rear axle wt. & total wt.
Height - Top of Cylinders 122.6 in 3115 mm
Width - Outside Rear Tires 134.3 in 3411 mm
Height - Exhaust Stack 141.1 in 3584 mm
Length - Between Tandem Axles 72.5 in 1841 mm
Length - Front Axle to Mid Tandem 290 in 7365 mm
Width - Tire Center Lines 106.4 in 2703 mm
Length - Front Axle to Moldboard 120.7 in 3066 mm
Length - Counterweight to Ripper 474.4 in 12051 mm
Height - Front Axle Center 29.9 in 760 mm
Width - Outside Front Tires 134.3 in 3411 mm
Length - Front Tire to Rear of Machine - Including Tow Hitch 417 in 10593 mm
Height - Top of Cab 147.5 in 3746 mm
Ground Clearance - Rear Axle 16.7 in 423 mm
Sound ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008 ISO 6394: 2008/ISO 6395: 2008/ISO 6396: 2008
ROPS/FOPS ISO 3471: 2008/ISO 3449: 2005 ISO 3471: 2008/ISO 3449: 2005
Brakes ISO 3450: 2011 ISO 3450: 2011
Steering ISO 5010: 2007 ISO 5010: 2007
Gear - Forward 1st 309 HP 227 kW
Gear - Forward 2nd 309 HP 227 kW
Gear - Reverse 2nd 309 HP 227 kW
Gear - Forward 4th 325 HP 239 kW
Gear - Forward 6th 341 HP 251 kW
Gear - Forward 5th 332 HP 244 kW
Gear - Forward 8th 362 HP 266 kW
Gear - Reverse 1st 309 HP 227 kW
Gear - Forward 3rd 315 HP 232 kW
Gear - Forward 7th 347 HP 255 kW
Gear - Reverse 3rd-6th 315 HP 232 kW
Wheel Group - 19.5×25 MP (2) Tires: 23.5R25 Bridgestone VKT 1 Star Tires: 23.5R25 Bridgestone VKT 1 Star
Wheel Group - 19.5×25 MP (1) Tires: 23.5R25 Bridgestone VKT 2 Star Tires: 23.5R25 Bridgestone VKT 2 Star
Wheel Group - 19.5×25 MP (3) Tires: 23.5R25 Bridgestone VJT 1 Star Tires: 23.5R25 Bridgestone VJT 1 Star
Wheel Group - 19.5×25 MP (4) Tires: 23.5R25 Michelin XHA 2 Star Tires: 23.5R25 Michelin XHA 2 Star
Wheel Group - 19.5×25 MP (5) Tires: 23.5R25 Michelin XLDD 2 Star L5 Tires: 23.5R25 Michelin XLDD 2 Star L5
Gear - Forward 4th 321 HP 239 kW
Gear - Reverse 2nd 304 HP 227 kW
Gear - Forward 1st 304 HP 227 kW
Gear - Reverse 3rd-6th 311 HP 232 kW
Gear - Forward 3rd 311 HP 232 kW
Gear - Forward 5th 327 HP 244 kW
Gear - Forward 7th 342 HP 255 kW
Gear - Forward 2nd 304 HP 227 kW
Gear - Reverse 1st 304 HP 227 kW
Gear - Forward 6th 337 HP 251 kW
Gear - Forward 8th 357 HP 266 kW

18 Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

OPERATOR ENVIRONMENT

  • Adjustable electric arm rest
  • Adjustable wrist rest
  • Air conditioner with heater
  • Air horn
  • Articulation, automatic Return-to-Center
  • Centershift pin indicator
  • Coat hook
  • Cup holder
  • Display, digital speed and gear
  • Doors, left and right side with wiper
  • Gauges (analog) inside the cab (includes fuel, articulation, engine coolant temp, engine RPM, and hydraulic oil temp)
  • Gauges, machine level
  • Information display touch screen
  • Joystick gear selection
  • Joystick hydraulic controls for implements, steering, transmission
  • Ladders, cab, left and right side
  • Lights, left and right side lights
  • Lights, night time cab
  • Meter, hour, digital
  • Mirror, inside rearview, wide angle
  • Power port, 12V
  • Radio ready, entertainment
  • ROPS cab, sound suppressed, less than 73 dB(A) ISO 6394 (70% fan speed)
  • Seat, cloth-covered, comfort air suspension
  • Storage compartments
  • Throttle control, electronic

POWER TRAIN

  • Air cleaner, dual stage dry type radial seal with service indicator through messenger and automatic dust ejector
  • Air-to-air after cooler (ATAAC)
  • Auto Diff Lock
  • Belt, serpentine, automatic tensioner
  • Brake wear indication
  • Brakes, oil disc, four-wheel, hydraulic
  • Consistent power to ground
  • Critically Low Fluid Level Monitoring System
  • Differential, lock/unlock
  • Drain, engine oil, high speed
  • Electronic over speed protection
  • Engine ECO Mode: Tier 4 Final/Stage V/Japan 2014 (Tier 4 Final) and Tier 2/Stage II/Japan 2001 (Tier 2) equivalent emission standards
  • Engine, compression brake
  • Ether starting aid
  • Fuel tank, fast fill, ground level
  • Fuel-water separator
  • Hydraulic Demand Fan
  • Muffler, under hood (Tier 2/Stage II/Japan 2001 (Tier 2) equivalent and Tier 3/Stage IIIA/Japan 2006 (Tier 3) equivalent emission standards
  • OK-to-Start
  • Optimized VHP
  • Parking brake – multi disc, sealed, oil-cooled
  • Priming pump, fuel
  • Rear axle, modular
  • Sediment drain, fuel tank
  • Three variations of the C13 engine. One meets U.S. EPA Tier 4 Final/EU Stage IV/Japan 2014 (Tier 4 Final) emission standards and is required for sale in higher regulated countries. The other options are capable of meeting Tier 2/Stage II/Japan 2001 (Tier 2) equivalent or Tier 3/Stage IIIA/Japan 2006 (Tier 3) equivalent emission standards.
  • Transmission, 8F/6R, power shift
  • VIMS no telematics

GUARDS

  • Front axle cylinder guard
  • Transmission guard

ELECTRICAL

  • Alternator, 150 ampere, sealed
  • Batteries, maintenance free, heavy duty, 1,400 CCA
  • Breaker panel
  • Electrical system, 24V
  • Lights: brake, reversing, roof-mounted roading, stop and tail (LED), work front
  • Product Link
  • Starter, electric, heavy duty

SAFETY

  • Alarm, back up
  • Ground level engine shutdown
  • Hammer (emergency exit)
  • Horn, electric
  • Lockout, hydraulic implement for roading
  • Operator not present monitoring system
  • Paint, glare reducing – top of front frame, rear enclosure and ripper cylinders
  • Rearview camera
  • Seat belt indicator
  • Seat belt, retractable 76 mm (3 in)
  • Secondary steering
  • Windows, laminated glass: – Fixed front with intermittent wiper – Door with intermittent wipers (two)
  • Windows, tempered: – Left and right side wipers – Rear with intermittent wiper
  • Light, LED, warning strobe
  • Lights front LED
  • Lights, front headlights high
  • Lights, front headlights low
  • Mounting, for warning light
  • Service lights
  • Working lights Halogen
  • Working lights LED

OTHER STANDARD EQUIPMENT

  • 3-bolt blade bracket
  • AccuGrade ARO
  • Accumulators, blade lift
  • Brake accumulators, dual certified
  • Cat Grade Control Cross Slope
  • CD ROM Parts Book
  • Clutch, circle drive slip
  • Cutting edges, flat DH-2 steel: – 254 mm × 35 mm (10 in × 1.4 in) – 19 mm (3⁄4 in) mounting bolts
  • Doors (four), engine compartment, (two left, two right hand) locking
  • Doors, two service, left and right side
  • Drawbar – six shoe with replaceable wear strips
  • End bits, 16 mm (5⁄8 in) DH-2 steel, 19 mm (3⁄4 in) mounting bolts
  • Fast fill fuel 567.8 L/min (150 gpm)
  • Fluid check
  • Frame, articulated, with safety lock
  • Hydraulics, load-sensing
  • Metallic fuel tank, 496 L (131 gal)
  • Metallic DCM wear strips
  • Modular cooling package
  • Moldboard: – 5.5 m × 787 mm × 25 mm (18 ft × 31 in × 1 in) – Hydraulic side shift and tip
  • Radiator, two cleanout access doors
  • Rear bumper
  • Rear tandem access steps and hand bars
  • S·O·S ports: engine, hydraulic, transmission, coolant
  • Tandem walkway
  • Top adjust circle wear strips
  • Fire suppression ready
  • Ripper, rear
  • Push block, counterweight

WORK TOOLS/G.E.T.

  • 5.5 m (18 ft) blade with flat cutting edge 254 mm × 35 mm (10 in × 13⁄8 in)

TIRES, RIMS, AND WHEELS

  • A partial allowance for tires on 597 mm × 609.6 mm (23.5 in × 24 in) multi-piece rims is included in the base machine price and weight

FLUIDS

  • Extended Life Coolant to –35° C (–31° F)

18 Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

OPERATOR ENVIRONMENT

  • Comfort package
  • Heated door
  • Mirrors high visibility
  • Mirrors, outside heated 24V
  • Mirrors, outside mounted
  • Seat heated
  • Seat heated/ventilated
  • Windows cleaning platform and ladders left-right hand side

POWER TRAIN

  • Transmission, autoshift

GUARDS

  • Debris guard
  • Rear fenders
  • Sound suppression, engine enclosure and transmission

SAFETY

  • Additional monitor for rearview camera
  • Enhanced access platform
  • Machine Security System Key
  • Service access platform

OTHER ATTACHMENTS

  • Auto-lube, Centro-matic
  • Auto-lube, ripper enhancement
  • Control, blade, variable float
  • Heater, engine coolant, 120V
  • Heater, engine coolant, 240V
  • Hydraulic arrangements with additional hydraulic valves Base+1
  • Hydraulic arrangements with additional hydraulic valves Base+5
  • Product Link Elite dual
  • Rim, 495.3 mm × 635 mm (19.5 in × 25 in) MP (spare)
  • Weather, Cold Plus package

WORK TOOLS/G.E.T.

  • 5.5 m (18 ft) blade with curved cutting edge 203 mm × 25 mm (8 in × 1 in)
  • Tooth, ripper

FLUIDS

  • Coolant, –51° C (–60° F)

Compatible Technology and Services

Leverage Caterpillar connected data and security principles to improve efficiencies, increase productivity and make your business more profitable.

  • Cat Fleet for Surface

    Cat® MineStar Fleet is the single best source for fleet management information. An integrated fleet monitoring and management system, it can be used with any machine or system to measure, manage and maximize every facet of an operation, no matter the size or type. Fleet provides real-time visibility to cycle time, payload and other key operational parameters. It monitors machine locations and material movement and provides alerts of misroutes to ensure material is moved to the proper location.

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Cat® MineStar Fleet is the single best source for fleet management information. An integrated fleet monitoring and management system, it can be used with any machine or system to measure, manage and maximize every facet of an operation, no matter the size or type. Fleet provides real-time visibility to cycle time, payload and other key operational parameters. It monitors machine locations and material movement and provides alerts of misroutes to ensure material is moved to the proper location.

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  • Cat Grade with Cross Slope for Motor Graders

    Cat® Grade with Cross Slope is an integrated system that enables motor grader operators to achieve grade faster and more accurately by automating the cross slope of the blade, allowing the operator to do more in the same amount of time. Other cost-saving benefits of the system include lower fuel consumption and up to 40% less material usage.

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Cat® Grade with Cross Slope is an integrated system that enables motor grader operators to achieve grade faster and more accurately by automating the cross slope of the blade, allowing the operator to do more in the same amount of time. Other cost-saving benefits of the system include lower fuel consumption and up to 40% less material usage.

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  • Cat Health

    Through regular monitoring of machine conditions, mines can adopt a more proactive approach to maintenance and repair. Equipment health data is a key contributor to that approach. Data helps mines identify equipment problems long before failure.

    Accessing the right data at the right time is critical to improving operational intelligence and machine predictive analysis. Cat® MineStar™ Health helps you meet that need by connecting you to your machines and delivering that important information. The MineStar Health portfolio set consists of Connectivity Enablers that collect, convert and transmit equipment data; and Applications that visualize, analyze and report health equipment data.

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Previous Next

Through regular monitoring of machine conditions, mines can adopt a more proactive approach to maintenance and repair. Equipment health data is a key contributor to that approach. Data helps mines identify equipment problems long before failure.

Accessing the right data at the right time is critical to improving operational intelligence and machine predictive analysis. Cat® MineStar™ Health helps you meet that need by connecting you to your machines and delivering that important information. The MineStar Health portfolio set consists of Connectivity Enablers that collect, convert and transmit equipment data; and Applications that visualize, analyze and report health equipment data.

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  • Cat Terrain for Grading

    Grading is a vital but less visible function that provides essential support for loading and hauling operations. Cat® MineStar™ Terrain for grading helps make dozer and motor grader operations safer and more efficient, which can make a significant difference to a mine site’s bottom line. Terrain for grading helps operators get to the specified grade more quickly without surveying, guesswork or rework.

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Grading is a vital but less visible function that provides essential support for loading and hauling operations. Cat® MineStar™ Terrain for grading helps make dozer and motor grader operations safer and more efficient, which can make a significant difference to a mine site’s bottom line. Terrain for grading helps operators get to the specified grade more quickly without surveying, guesswork or rework.

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